Viper Spinster Aluminum Dart Shaft Rotating shaft top allows flights to spin freely when stuck in the board, eliminating deflection, increasing your scores Aluminum body construction ensures that your shafts will stand up to the challenge of tough wear and tear Locking hole allows you to use extra leverage to tighten shafts to your barrel, eliminating the need to retighten after a shot or two Choose either a short or medium shaft to provide a personalized fit Includes 3 shafts to equip your complete dart set